Ruko step drill hss-e sp gr. 09, 4-12 mm6L473409
Ruko step drill tialn gr. 6 7/8-1 3/8"6W162486
Ruko step drill hss-e 6.5-32.5 mm6X382479
Ruko step drill hss gr. 9 7/8-1 1/8"3L860000
Ruko step drill hss tin gr. 8 7/8"4O131147
Ruko step drill hss tin gr.23N994182
Ruko step drill hss sp gr. 5, tialn9H244895
Ruko step drill hss tialn gr. 096C473065
Ruko step drill sp gr.15, 6.5-32.5 mm5X058224
Ruko step drill hss tin gr. 6 7/8-1 3/8"5Z431875